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3 years ago

Magma generated by a hot spot rises through the rigid plates of the lithosphere and produces active volcanoes at the Earth's

Chemistry

2 answers:

lana66690 [7]3 years ago

8 0

Answer:

<em>Actually you were right it was A) become extinct.</em>

Explanation:

<em>Here's why: As continental volcanoes move away from the hot spot, they cool, subside, and become extinct.</em>

<em>The Hawaiian hot spot has been active at least 70 million years, producing a volcanic chain that extends 3,750 miles across the northwest Pacific Ocean.</em>

crimeas [40]3 years ago

4 0

Answer:

I think its A let me know if im wrong

Explanation:

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How many neutrons are in a single atom of indium-115?

anzhelika [568]

Indium has 49 protons

mass number (# of neutrons and # of protons combined) is 115

115 - 49 = 66

66 neutrons

8 0

3 years ago

Which of the following is a physical change?

yan [13]

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.

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3 years ago

analyze imagine that a classmate draws an electron dot diagram for a helium atom with two dots. he or she tells you that these d

AveGali [126]

Answer:

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Explanation:

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5 0

3 years ago

If the caffeine concentration in a particular brand of soda is 1.71 mg/oz, drinking how many cans of soda would be lethal? assum

vekshin1

1000 milligrams = 1 gram

Lethal Dose:
10 grams = 10,000 milligrams

Step 1:
Lethal dose divided by mg per can.
10,000 mg / 1.71 mg= 5847.95 ounces

Step 2:
5847.95 oz / 12 oz per can= 487.32 cans

Step 3:
Round up to 488 cans because we have to buy whole cans.

Hope this helps! :)

8 0

4 years ago

At a particular temperature, the solubility of Kr in water is 0.060 M when the partial pressure is 0.90 atm. What partial pressu

elena55 [62]

At a particular temperature, the solubility of He in water is 0.060 M when the partial pressure is 0.90 atm. 2.27 atm is the partial pressure of Kr would give a solubility of 0.150 M.

<h3>What is Henry's Law ?</h3>

According to Henry's law, the weight of a gas dissolved by a liquid is proportional to the pressure of the gas onto the liquid.
With very few exceptions, a solute molecule in an extremely diluted solution will only have solvent molecules as its close neighbors. This means that the likelihood that a specific solute molecule will escape into the gas phase is predicted to be independent of the total concentration of solute molecules.

Solution:

The solubility of gas is directly proportional to partial pressure. It is expressed as:

S = $K_ h \times P _g_a_s$

where, S = Solubility of gas

$K_h$ = Henry's Law constant

$P_g_a_s$ = Partial pressure of gas

Now, put the values in above expression we get

0.060M = $K_h$ × 0.9 atm

$K_h$ = = 0.066 M/atm

Now we have to find the partial pressure of He

0.150 M = 0.066 M/atm × $P_g_a_s$

$P_g_a_s$ = 2.27 atm

Learn more about the Henry's Law : brainly.com/question/23204201

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3 0

2 years ago